Greg

Posted 29 July 2009 - 09:38 AM

Greg

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214 posts

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Location:Ontario

Canada

Thanks Mike,

I just tried ImageMagick, but it wont read the files either. It says "invalid file format" which makes no sense because I can rename a JPG to .TXT or even .BLARGHHHHH and it will still open in most of my software. The extension is usually not the problem.

Michael Schmeling

Posted 29 July 2009 - 10:25 AM

Michael Schmeling

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Location:Kassel, Germany

Germany

The TIFF format has many options, and some are a bit exotic. Probably you have the bad luck that your files are exactly in one such exotic format, which is not implemented fully in the usual utilities.

If IrfanView can read the files, can you save at least one of the smaller ones in a different format?

I have a computer with 8GB RAM. If you want you can send me one of the larger files and I could try to convert it. PM me if you are interested.

Nick H

Posted 29 July 2009 - 10:41 AM

But it looks like I have temporarily solved the problem.I downloaded a free viewer called "IrfanView" which apparently will open anything. It worked!

I still cant export or resave the files from the viewer because of memory issues, but at least I can now view the content!

(they are huge scanned B&W municipal plans)

Hi Greg, have you tried the batch conversion utility in Irfanview? Start Irfanview, don't load anything and then press the 'B' key. You can convert a directory of files like this, to the format of your choice. Probably best to do this with copies of your original files, I'd guess. Ticking 'Advanced options' will let you set a new colour depth, which should reduce the file sizes.